* [PATCH] powerpc: Call check_if_tm_restore_required() in enable_kernel_*()
@ 2015-12-10 9:04 Anton Blanchard
2015-12-14 9:47 ` Michael Ellerman
0 siblings, 1 reply; 2+ messages in thread
From: Anton Blanchard @ 2015-12-10 9:04 UTC (permalink / raw)
To: Rashmica, Michael Ellerman, Michael Neuling, benh, paulus,
cyrilbur, scottwood
Cc: linuxppc-dev
Commit a0e72cf12b1a ("powerpc: Create msr_check_and_{set,clear}()")
removed a call to check_if_tm_restore_required() in the
enable_kernel_*() functions. Add them back in.
Fixes: a0e72cf12b1a ("powerpc: Create msr_check_and_{set,clear}()")
Reported-by: Rashmica Gupta <rashmicy@gmail.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
---
arch/powerpc/kernel/process.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index fffc2d2..0cffb2c 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -181,8 +181,10 @@ void enable_kernel_fp(void)
msr_check_and_set(MSR_FP);
- if (current->thread.regs && (current->thread.regs->msr & MSR_FP))
+ if (current->thread.regs && (current->thread.regs->msr & MSR_FP)) {
+ check_if_tm_restore_required(current);
__giveup_fpu(current);
+ }
}
EXPORT_SYMBOL(enable_kernel_fp);
#endif /* CONFIG_PPC_FPU */
@@ -204,8 +206,10 @@ void enable_kernel_altivec(void)
msr_check_and_set(MSR_VEC);
- if (current->thread.regs && (current->thread.regs->msr & MSR_VEC))
+ if (current->thread.regs && (current->thread.regs->msr & MSR_VEC)) {
+ check_if_tm_restore_required(current);
__giveup_altivec(current);
+ }
}
EXPORT_SYMBOL(enable_kernel_altivec);
@@ -249,6 +253,7 @@ void enable_kernel_vsx(void)
msr_check_and_set(MSR_FP|MSR_VEC|MSR_VSX);
if (current->thread.regs && (current->thread.regs->msr & MSR_VSX)) {
+ check_if_tm_restore_required(current);
if (current->thread.regs->msr & MSR_FP)
__giveup_fpu(current);
if (current->thread.regs->msr & MSR_VEC)
@@ -289,8 +294,10 @@ void enable_kernel_spe(void)
msr_check_and_set(MSR_SPE);
- if (current->thread.regs && (current->thread.regs->msr & MSR_SPE))
+ if (current->thread.regs && (current->thread.regs->msr & MSR_SPE)) {
+ check_if_tm_restore_required(current);
__giveup_spe(current);
+ }
}
EXPORT_SYMBOL(enable_kernel_spe);
--
2.5.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: powerpc: Call check_if_tm_restore_required() in enable_kernel_*()
2015-12-10 9:04 [PATCH] powerpc: Call check_if_tm_restore_required() in enable_kernel_*() Anton Blanchard
@ 2015-12-14 9:47 ` Michael Ellerman
0 siblings, 0 replies; 2+ messages in thread
From: Michael Ellerman @ 2015-12-14 9:47 UTC (permalink / raw)
To: Anton Blanchard, Rashmica, Michael Neuling, benh, paulus,
cyrilbur, scottwood
Cc: linuxppc-dev
On Thu, 2015-10-12 at 09:04:05 UTC, Anton Blanchard wrote:
> Commit a0e72cf12b1a ("powerpc: Create msr_check_and_{set,clear}()")
> removed a call to check_if_tm_restore_required() in the
> enable_kernel_*() functions. Add them back in.
>
> Fixes: a0e72cf12b1a ("powerpc: Create msr_check_and_{set,clear}()")
> Reported-by: Rashmica Gupta <rashmicy@gmail.com>
> Signed-off-by: Anton Blanchard <anton@samba.org>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/d64d02ce4ebaa79bf1c026e8
cheers
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